With the systemd-ification in https://launchpad.net/ubuntu/+source/openvpn/2.3.2-9ubuntu3 this now works reasonably well at least under plymouth.
** Changed in: openvpn (Ubuntu) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openvpn in Ubuntu. https://bugs.launchpad.net/bugs/1432681 Title: "could not read Auth username from stdin" during boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openvpn/+bug/1432681/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs